Wall Mount Type Ultrasonic Flow Meter from China Manufacturer

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Ultrasonic flow meter

Water treatment

Liquid flow meter

Introduction

Application

Technical Data

Installation

Introduction

Wall mount type ultrasonic flow meter is designed to measure the fluid velocity of liquid within a closed conduit. The transducers are a non-contacting, clamp-on type, which will provide benefits of non-fouling operation and easy installation.
Wall mount type ultrasonic flow meter principle working: The flow meter operates by alternately transmitting and receiving a frequency modulated burst of sound energy between the two transducers and measuring the transit time that it takes for sound to travel between the two transducers. The difference in the transit time measured is directly and exactly related to the velocity of the liquid in the pipe.

Advantages

Wall Mount Type Ultrasonic Flow Meter Advantages and Disadvantages
1: Highest zero point stability and accurate measurement of even the lowest flow velocities
2: Highest precision on the basis of individually calibrated ultrasonic transducers and transmitters
3: One flow meter for all applications
4: No maintenance efforts
5: Highest process safety

Application

Wall mount type ultrasonic flow meter is high reliability of flow meter, widely used in petroleum, chemical industry, food ,electricity, water supply and drainage, etc.

Water Treatment

Food Industry

Pharmaceutical Industry

Petrochemical

Metallurgical Industry

Public Drainage

Technical Data

Table 1:Wall Mount Type Ultrasonic Flow Meter Technology Parameter

Items	Specifications
Accuracy	±1% of reading at rates >0.2 mps
Repeatability	0.2%
Principle	Transmit time
Velocity	±32m/s
Pipe Size	DN15mm-DN6000mm
Display	LCD with backlight, display accumulated flow/heat, instantaneous flow/heat, velocity, time etc.
Signal Output	1 way 4-20mA output
	1 way OCT pulse output
	1 way relay output
Signal Input	3 way 4-20mA input achieve to heat measurement by connecting PT100 platinum resistor
Other Functions	Automatically record the positive,negative,net totalizer flow rate and heat. Automatically record the time of power-on/off and flow rate of the last 30 times.Replenish by hand or read the datas through Modbus communication protocol.
Pipe Material	Carbon Steel, stainless steel, cast iron, cement pipe, copper, PVC, aluminum, FRP etc. Liner is allowed
Straight Pipe Section	Upstram: 10D; Downsteam:5D; From the pump:30D (D means outer diameter)
Liquid Types	Water, sea water, industrial sewage, acid & alkali liquid, alcohol, beer, all kinds of oils which can transmit ultrasonic single uniform liquid
Liquid Temperature	Standard: -30℃ ~ 90℃ ,High-temperature:-30℃ ~ 160℃
Liquid Turbidity	Less than 10000ppm, with a little bubble
Flow Direction	Bi-directional measuring, net flow/heat measuring
Environment Temperature	Main Unit: -30℃ ~ 80℃
Environment Temperature	Transducer: -40℃ ~ 110℃, Temperature transducer: select on enquiry
Environment Humidity	Main Unit: 85% RH
Environment Humidity	Transducer: standard is IP65, IP68(optional)
Cable	Twisted Pair Line, standard length of 5m, can be extended to 500m (not recommended); Contact the manufacturer for longer cable requirement. RS-485 interface, transmission distance up to 1000m
Power Supply	AC220V and DC24V
Power Consumption	Less than 1.5W
Communication	MODBUS RTU RS485

Table 2: Wall Mount Type Ultrasonic Flow Meter Transducer Selection

Type	Picture	Specification	Measuring range	Temperature range
Clamp on type		Small-size	DN15mm~DN100mm	-30℃~90℃
		Middle- size	DN50mm~DN700mm	-30℃~90℃
		Large -size	DN300mm~DN6000mm	-30℃~90℃
High temperature clamp on type		Small-size	DN15mm~DN100mm	-30℃~160℃
		Middle- size	DN50mm~DN700mm	-30℃~160℃
		Large -size	DN300mm~DN6000mm	-30℃~160℃
Insert type		standard length type Wall thickness ≤20mm	DN50mm~DN6000mm	-30℃~160℃
		Extra-length type Wall thickness ≤70mm	DN50mm~DN6000mm	-30℃~160℃
		Parallel type used for narrow installation space	DN80mm~DN6000mm	-30℃~160℃
Inline type		π type inline	DN15mm~DN32mm	-30℃~160℃
Inline type		Flange type	DN40mm~DN1000mm	-30℃~160℃

Table 3: Wall Mount Type Ultrasonic Flow Meter Temperature Sensor Model

PT100	Picture	Accuracy	Cut off water	Measuring range	Temperature
clamp on		±1%	No	DN50mm~DN6000mm	-40℃~160℃
Insertion sensor		±1%	Yes	DN50mm~DN6000mm	-40℃~160℃
Insertion type installation with pressure		±1%	No	DN50mm~DN6000mm	-40℃~160℃
Insertion type for small pipe diameter		±1%	Yes	DN15mm~DN50mm	-40℃~160℃

Installation

Wall mount type ultrasonic flow meter installation requirements
The state of the pipeline for measuring the flow will greatly affect the measurement accuracy, the detector installation location should be selected in a place that meets the following conditions:
1. It must be ensured that the straight pipe section where the probe is installed is: 10D on the upstream side(D is the pipe diameter), 5D or more on the downstream side, and there must be no factors that disturb the fluid(such as pumps,valves, throttles, etc.) in the 30D on the upstream side. And try to avoid the unevenness and welding position of the pipeline under test.
2. The pipeline is always full of liquid, and the fluid should not contain bubbles or other foreign objects. For horizontal pipelines, install the detector within ±45°of the horizontal centerline. Try to choose the horizontal centerline position.
3. When install the ultrasonic flow meter, need to input these parameters: pipe material,pipe wall thickness and pipe diameter. Fulid type, whether it contains impurities,bubbles, and whether the tube is full.

Transducers installation

1. V-method Installation
V-method installation is the most widely used mode for daily measurement with pipe inner diameters ranging from DN15mm ~ DN200mm. It is also called reflective mode or method.

2. Z-method Installation
Z-method is commonly used when the pipe diameter is above DN300mm.